cal_sunsetHourAngle

Supports the calculation of meteorological characteristics in
evapotranspiration research and reference crop evapotranspiration, and offers
three models to simulate crop evapotranspiration and soil water balance in
the field, including single crop coefficient and dual crop coefficient,
as well as the Shuttleworth-Wallace model. These calculations main refer to
Allen et al.(1998, ISBN:92-5-104219-5), Teh (2006, ISBN:1-58-112-998-X), and
Liu et al.(2006) <doi:10.1016/j.agwat.2006.01.018>.

Minguo Liu

simET

Tools for Simulation of Evapotranspiration of Field Crops and
Soil Water Balance

Huimin Yang

cal_sunsetHourAngle function

<dl><dt>lat</dt>
<dd>latitude (Radian), positive for the northern hemisphere and
negative for the southern hemisphere.</dd>
<dt>solar_declination</dt>
<dd>solar declination(Radina).</dd></dl>

Arguments

Calculating sunset hour angle — cal_sunsetHourAngle

<dl>

<dt>lat</dt>
<dd>latitude (Radian), positive for the northern hemisphere and
negative for the southern hemisphere.</dd>


<dt>solar_declination</dt>
<dd>solar declination(Radina).</dd>

</dl>

cal_sunsetHourAngle: Calculating sunset hour angle

Description

Usage

Value

Arguments

References